7291199904 has 96 divisors (see below), whose sum is σ = 20759711616. Its totient is φ = 2231623680.

The previous prime is 7291199857. The next prime is 7291199917. The reversal of 7291199904 is 4099911927.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12429 + ... + 121395.

It is an arithmetic number, because the mean of its divisors is an integer number (216246996).

Almost surely, 2^7291199904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7291199904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10379855808).

7291199904 is an abundant number, since it is smaller than the sum of its proper divisors (13468511712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7291199904 is a wasteful number, since it uses less digits than its factorization.

7291199904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109038 (or 109030 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 51.

The square root of 7291199904 is about 85388.5232569342. The cubic root of 7291199904 is about 1939.0975985177.

The spelling of 7291199904 in words is "seven billion, two hundred ninety-one million, one hundred ninety-nine thousand, nine hundred four".